Glue is heavier than paint. Dope is very lightweight since the vehicle in which it's pigments are dissolved/ suspended evaporates away. I can't remember the numbers but it is somewhere around 80%? I remember comparing Solartex to some doped fabric and I even weighed it. Unfortunately I don't remember the exact figures but my doped fabric was a 'smidge' lighter. Results may vary. The next time I crash and do a recover I'll definitely re-compare! Let's hope that doesn't happen any time too soon!